Speedo help please!
 

Hey There,
My speedometer continues its quest to drive me insane with its clicking and bouncing around. When I originally got the truck, it was hooked up for cruise with the two cables. Speedo didn't work. So I went with the single cable setup (lubed properly with liquid graphite - it's not the cable). It worked fine for a while, but when the weather turned cold, the clicks began. Tried greasing up the dash end, but that didn't help. So I picked up a used speedo on ebay, hooked it up to the cable without intalling it and it worked fine, but when I actually put it in the dash, the clicking started again. So it's not the cable, and I don't think it's the driven gear in the tranny. That leaves something in the dash - maybe the retainer clip is messing it up? Has anyone encountered a similar problem? Thanks!

Re: Speedo help please!
 

The original one in mine did the same thing especially in the winter until some oaf decided to take apart the dash and clean it up. I broken the needle off. My replacement was one from an 84 and it is quieter and more stable. It could be just the older ones that get worn out.

Re: Speedo help please!
 

When mine did the "jumping" there was no "clicking", but it turned out to be the speedometer. If your replacement one worked for a while and suddenly messed up then I am leaning toward BOTH of your used speedos are bad. The newer one may have worn out shortly after you installed it. Ironically me "new" speedometer came out of a 1976 truck and replaced a 1981 speedo and works great.

Re: Speedo help please!
 

Yeah, the "newer" one could have been shot, too. It had 17k on the odometer, so who knows, that might be 217k for all I know. Maybe I'll just spring for an acutal "new" one ($110) from RockAuto.

Re: Speedo help please!
 

Mine has a chirping sound and it bounces till you get above 10 mph and then it just continues to chirp faster as I drive faster when it's cold. Was leaning towards the speedometer myself. Thinking about rebuilding the whole insterment cluster since lmc has that factory looking tach now.
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